In the workshop ventilation and cooling project, the processing and installation of environmental friendly air-conditioning ventilation pipes is a very important link. There are some specific requirements and specifications for the processing and installation methods of ventilation pipes, which should be learned by everyone or the company. What are the processing specifications for ventilation ducts? Then I will explain it to you.

通风管加工前的注意事项：

Precautions before processing of vent pipe:

一：规格。这里所说的规格是通风管道的基本规格，以及我们需要的通风管道的尺寸和尺寸。值得注意的是，我们在确定规格时与空调的使用相关联。只有这样，才能保证在设置好通风管道的规格后，才能与空调连接，发挥其作用，完成其使用效果。

1： Specifications. The specifications mentioned here are the basic specifications of ventilation ducts, as well as the sizes and dimensions of ventilation ducts we need. It is worth noting that our specifications are related to the use of air conditioners. Only in this way can we ensure that after the specification of the ventilation pipe is set, it can be connected with the air conditioner, play its role and complete its use effect.

二：类型。通风管的种类很多。不同类型的空调与管道配合使用，效果不同，尤其是通风管道的隔热。因此，如果我们要加工通风管道以更好地与空调配合使用，我们还需要在加工前考虑其类型，这是确保它们工作并发挥有利作用的良好条件。

2： Type. There are many kinds of ventilation pipes. Different types of air conditioners are used together with pipes with different effects, especially the heat insulation of ventilation pipes. Therefore, if we want to process ventilation ducts to better work with air conditioners, we also need to consider their types before processing, which is a good condition to ensure that they work and play a beneficial role.

总之，在加工通风管之前，一定要结合空调的基本情况，注意通风管的规格和类型。不同的空调需要不同的通风管、不同的规格、不同的类型。因此，当涉及到通风管道时，考虑上述问题。

In a word, before processing the ventilation pipe, we must pay attention to the specification and type of the ventilation pipe in combination with the basic conditions of the air conditioner. Different air conditioners need different ventilation pipes, different specifications and different types. Therefore, when it comes to ventilation ducts, consider the above issues.

通风管道加工规范：

Processing specification of ventilation duct:

1、风管加工时，为保证风管生产后的强度，切割时应预留20mm铝箔作为保护边;

1. During air duct processing, 20mm aluminum foil shall be reserved as the protective edge during cutting to ensure the strength of air duct after production;

2、风管在拼接前预先组装好，检查接缝是否严密，尺寸是否符合要求。根据季节温度、湿度和粘合剂特性确定佳粘合时间。加入后，用正方形检查。钢带。垂直度和对角线偏差的调整符合规定。

2. The air duct shall be pre assembled before splicing to check whether the joint is tight and whether the size meets the requirements. Determine the best bonding time according to the seasonal temperature, humidity and adhesive properties. After adding, check with a square. Steel strip. The adjustment of perpendicularity and diagonal deviation shall meet the requirements.

3、通风管道加工时，请做好现场预制板、管道成品的保护工作。

3. During the processing of ventilation pipes, please protect the prefabricated boards and finished pipes on site.

4、连接安装后，应检查接头接头，接头后应平整、弯曲。错位局部裂纹、大于2mm的缝隙等缺陷。

4. After connection and installation, check the joint, which shall be flat and bent. Dislocation, local cracks, cracks larger than 2mm and other defects.

5、风管支架与吊架的距离符合标准。

5. The distance between the air duct support and the hanger conforms to the standard.